Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Jon F Willen, MD

Individual provider Infectious Disease Physician · NPI 1124117593

Jon F Willen, MD is an Infectious Disease Physician in West Hills, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

7230 Medical Center Dr #203
West Hills, CA 91307-1907
Phone: (818) 226-6811
Fax: (818) 226-6810
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence C37027 (CA)

Record details

NPI number1124117593
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 12, 2006
Last updated in NPPESJuly 8, 2007
Mailing address7230 Medical Center Dr, 203, West Hills, CA 91307-1907

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